Stopples, spelled as /ˈstɒpəlz/, is a noun that refers to a small plug or stopper used to close a hole or opening. The word is derived from the verb "stop," which means to close or block an opening. The -les suffix in stop-ples is a diminutive form, indicating smallness or endearment. The pronunciation guide for stopples is "stah-puhls," with the stress on the first syllable. This word can commonly be found in plumbing or laboratory contexts, where stoppers are frequently used.